Mechanisms of late-stage rift deformation: evidence from new 3D seismic data over the West Iberia margin

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dc.contributor.advisorSawyer, Dale Sen_US
dc.creatorJordan, Brian Een_US
dc.date.accessioned2017-08-03T17:26:27Zen_US
dc.date.available2017-08-03T17:26:27Zen_US
dc.date.created2016-05en_US
dc.date.issued2016-04-21en_US
dc.date.submittedMay 2016en_US
dc.date.updated2017-08-03T17:26:30Zen_US
dc.description.abstractI describe a new 3D seismic dataset over the West Iberia margin that demonstrates the complex 3D architecture of hyperextended continental crust and exhumed continental mantle at the distal edge of the margin. Faulted continental crustal blocks show higher degrees of extension in the north than the south. Similarly, pre-tectonic sediments are cut by more small-scale normal faults in the north. I hypothesize that extension within the frontal basin was constrained by basement topography, specifically a small mantle ridge identified at the southern extent of the basin that may have obstructed the extension of the continental crustal blocks and overlying sediments. Several thrust faults also cut the pre-tectonic sediments and are interpreted to be the result of gravity-driven sliding during late-stage extension. After large-scale extension of continental crustal blocks, further extensional creep caused small-scale normal faulting of the pre-tectonic sediment in the north.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationJordan, Brian E. "Mechanisms of late-stage rift deformation: evidence from new 3D seismic data over the West Iberia margin." (2016) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/96563">https://hdl.handle.net/1911/96563</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/96563en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectIberiaen_US
dc.subjectGaliciaen_US
dc.subjectriften_US
dc.subjectextensionen_US
dc.subjectmagma-pooren_US
dc.subjectdeformationen_US
dc.subjectseismicen_US
dc.subjectinterpretationen_US
dc.titleMechanisms of late-stage rift deformation: evidence from new 3D seismic data over the West Iberia marginen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEarth Scienceen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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